Free SEO & digital marketing tools

18 working tools. Search by name or by the problem you are trying to solve.

Website audit Check a live page end to end

Website SEO Audit Check one page for 35+ technical, on-page, indexability and security issues, plus its robots.txt and sitemap. Live check

Meta & SERP Titles, descriptions and social previews

Meta Tag & Head Inspector Fetch a URL and list its title, description, canonical, robots, Open Graph, Twitter, hreflang and headings. Live check SERP Snippet Preview Write a title and description and see an approximate desktop and mobile Google result, with pixel-width guidance. Runs in your browser Meta & Open Graph Generator Generate the full set of SEO, Open Graph and Twitter/X card tags, ready to paste into your <head>. Runs in your browser

Robots & indexing Crawl rules and indexability

robots.txt Tester Fetch or paste a robots.txt and test whether Googlebot, Bingbot or AI crawlers may crawl a URL — with the matching rule. Live check robots.txt Generator Build a clean robots.txt with sitemap lines, blocked folders and optional AI-crawler rules. Runs in your browser

Sitemaps Validate and generate XML sitemaps

XML Sitemap Checker Validate a sitemap or sitemap index: structure, URL count, duplicates, other hosts and lastmod quality. Live check XML Sitemap Generator Paste a list of URLs and download a valid XML sitemap, split automatically at 50,000 URLs. Runs in your browser

Redirects & HTTP Status codes, chains and headers

Redirect & Status Checker Trace every hop of a redirect chain with status codes, timings, loops and the final response headers. Live check

Structured data JSON-LD for rich-result eligibility

Schema / JSON-LD Generator Generate Organization, LocalBusiness, Article, Product, Breadcrumb, Event and FAQ JSON-LD with property checks. Runs in your browser

Content & international Keyword density and hreflang

Hreflang Tag Generator Create reciprocal hreflang tags (HTML or XML sitemap format) with code validation and x-default. Runs in your browser Keyword Density Analyzer Paste text to see word count, reading time and the most frequent one-, two- and three-word phrases. Runs in your browser

Performance Core Web Vitals from Google

Core Web Vitals Check Run Google PageSpeed Insights: real-user LCP, INP and CLS (when available) and Lighthouse lab results. Live check

Marketing calculators Ads, email, UTM and A/B tests

SPF, DKIM & DMARC Checker Look up a domain's MX, SPF, DMARC and DKIM records and spot deliverability problems. Live check UTM Campaign URL Builder Build consistent, lowercase UTM-tagged campaign links for GA4, with presets for common channels. Runs in your browser ROAS & Ad Metrics Calculator Calculate ROAS, break-even ROAS, CPC, CPM, CTR, CPA and conversion rate from your campaign numbers. Runs in your browser Email Campaign Calculator Open rate, click rate, click-to-open rate, bounce and unsubscribe rates and email ROI. Runs in your browser A/B Test Significance & Sample Size Two-proportion z-test with confidence interval, plus the sample size needed to detect a given lift. Runs in your browser